yi<br><br><br><span style="font-size: 18pt;">USB2.0 chip, true high-speed chip.</span><br><span style="font-size: 18pt;">? (Hi-speed) USB2.0 interfaces, the theoretical maximum rate of up to 480Mbps, backward compatible with USB 1.1 / 1.0 standard specifications Equipped with four USB jack with hot-swap capability</span><br><span style="font-size: 18pt;">Current protection function, support overload voltage and instantaneous current protection, safe and convenient</span><br><span style="font-size: 18pt;">Work lights</span><br><span style="font-size: 18pt;">Humidity: 10% - 90%</span><br><span style="font-size: 18pt;">Operating voltage: 5V</span><br><span style="font-size: 18pt;">Working Current: 500mA</span><br><span style="font-size: 18pt;">Working temperature: -20C - 75C</span><br><span style="font-size: 18pt;">Storage temperature: -40C - 85C</span><br><span style="font-size: 18pt;">Support System: Windows 95/98/2000/2003 / ME / XP / Vista or Mac OS 8.1 or higher (under Windows 95/98 systems need to install the driver)</span><br><span style="font-size: 18pt;"><span style="font-size: 18pt;">Whether the external power supply: external power supply<br><br><br></span></span><p><img align="absmiddle" src="http://gd3.alicdn.com/imgextra/i3/1933230406/TB2m2eDcVXXXXc1XXXXXXXXXXXX_!!1933230406.jpg" width="581" height="7989"></p><p><img src="http://gd4.alicdn.com/imgextra/i4/T2s4moXH8XXXXXXXXX-350475995.png?p=recommend_v2_4363190_start_bot_1"></p><table title="recommend_v2_4363190" border="0" width="750" cellspacing="0" cellpadding="0" align="center" bgcolor="#faf7ee"><tbody><tr><td>?</td></tr></tbody></table><p><img src="http://gd4.alicdn.com/imgextra/i4/T2s4moXH8XXXXXXXXX-350475995.png?p=recommend_v2_4363190_start_bot_1"></p><table title="recommend_v2_4363190" border="0" width="750" cellspacing="0" cellpadding="0" align="center" bgcolor="#faf7ee"><tbody><tr><td>?</td></tr></tbody></table>